HOUSTON (AP/CBSDFW.COM) — A dog returning to the United States with a soldier’s family was euthanized after suffering heat stroke in Houston while in the care of United Airlines.

Rachel Estes tells the Houston Chronicle that she and her 5-year-old daughter were returning to North Carolina from South Korea, where her husband was completing a tour of duty. She says the family’s two cats arrived in Charlotte, N.C., a day after the family’s arrival, but their 14-pound terrier had to be euthanized at a veterinary clinic near Bush Intercontinental Airport.

The dog’s medical chart at Animal Emergency clinic Northeast in Humble showed the dog arrived collapsed in its carrier, had been “tangled up in harness,” and suffered heat stroke.

United Airlines said in a statement that it wasn’t responsible for the death.

(©2012 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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